var xmlHttp

function getAjax(url,divname)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
//var url="booking_calendar.asp";
//url=url+"?arrival="+document.form_dates.arrival.value;
//url=url+"&departure="+document.form_dates.departure.value;
//url=url+"&prop_id="+document.form_dates.prop_id.value;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=function() {
if (xmlHttp.readyState==4)
{ 
document.getElementById(divname).innerHTML=xmlHttp.responseText;
}
};
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
//document.getElementById(divname).innerHTML=url;
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}